Hydrofining
加氢精制, 氢化提纯
🗣️ 情景例句
Scientists have confirmed that the Earth is, indeed, round.
科学家证实，地球确实是圆的。
The best is oftentimes the enemy of the good.
要求过高反难成功。
Excuse me. May I have a piece of paper, please?
请问，我可以要一张纸吗？